Plate-rolling-mill attachment.



G. DIEFENBACH & H. WALDORF.

PLATE ROLLING MILL ATTACHMENT.

APPLICATION FILED FEB. 20, I914.

hwmwfim Patented Apr. 20, L915.

' forming JPLATE-ROLLIN'G-MILL ATTACHMENT.

Application filed February 20, 1914.

To all whom it may concern:

Be it knownthat we, 'GEORGE DIEFENBACI'I and HARRY WALDORF, citizens ofthe United States, residing at Granite City, Illinois, have invented acertain new and useful improvement in Plate-'Rolling-Mill Attachments,of which the following is a'full, clear, and exact description, suchaswill enable others skilled in the art to which it appertains to make anduse the same, reference being had to the accompanying drawings, part ofthis specification, in which 1 I Figure 1 is a vertical section takenthrough the central portion of a plate rolling mill, and showing ourimproved scale removing attachment combined therewith. Fig. 2 is a rearelevational view of a rolling mill with our attachment applied thereto.Fig. 3 is a detail section taken approximately on the line 3 3 of Fig.2, and showing one of the adjustable bearings for the rotary brushesforming a part of our improved rolling mill attachment. Fig. 4 is a viewsimilar to Fig. 3, and showing the position of the adjustable brushhearing when the same has been moved to bring worn brushes into contactwith the surface of the plate.

Our invention relates to a brush attachment for plate rolling mills, theprincipal object of our invention being to arrange brushes on thedischarge side of a plate roll-- ing mill, for the purpose of removingthe scale from the surfaces of the rolled plates immediately after thelatter pass from between the rolls.

In the manufactureof rolled metal plates, the billets from which theplates are rolled are heated prior to their passage through the rollingmill, and in heating, scale due to OX- idization is formed on thesurfaces of the billets and the proper time to remove this scale isimmediately after the plate has been passed between the rolls the firsttime, or before it is re-rolled. It will be understood that each plateis passed several times between the rolls and the scale, if allowed toremain onthe plate, is gradually pressed into the surface of the same,and if this scale is later removed accidentally'or otherwise, it leavesa depression or thin place in the plate, thus making said platedefective. To overcome this objection we propose to arrange metalbrushes adjacent to the rollers, and on. the discharge side thereof,which Specification of Letters Patent.

Serial No. 819,944.

brushes are adapted to engage both upper and lower faces of the plateandremove the Patented Apr. 20 1915.,

scale in the opposite direction to that in which the plate is traveling.Where rotary .brushes are used the same are caused to rotate in theopposite direction to that of the rollers of the mill, so that the platein emerging from between said rollers will contact with the brushes, sothat the scale will be brushed off said plate in the direction oppositeto that in which It-is obvious that if the brushes are stationary theplate in passing between them will have the scale removed in theopposite directionto that in which the plate is traveling.

With the above and other objects in view, our invention consists incertain novel features of construction and arrangement of parts,hereinafter more fully described and claimed.

Referring by numerals to the accompanying drawings, 10 designates theframe of the rolling mill, 11 the rolls thereof, 12 the table or supportfor the sheets as they are delivered to the rolls, 13 a transverse baron the rear side of the mill, to which bar is attached a series of guidebars 14 which project toward the rolls and which support the sheetsafter the same have passed between the rolls.

Pivotally mounted on the main frame of the mill and on the dischargeside-of the rolls is a pair of plates or bearings 15 in which arejournaled the ends of rotary brushes forming a part of our improvedattachment, said brushes comprising shafts 16 to which is applied inanysuitable manner steel bristles. The upper one of these rotary brushesis arranged so that the ends of its bristles travel through a path whichis directly above the upper edges of the guards 14 while the lower brushis arranged sothat its bristles pass upward between the guard bars 14,and thus the upper and lower surfaces of the sheets passing over theguard bars are engaged by the ends of the bristles of both brushes. 1

Connected by ball and socket joints to the upper end of one of thebearing members 15 is the inner end of a screw rod 17, the same passingthrough an adjustable bearing 18 located on the frame of the mill, andthe said plate is traveling.

outer end of this screw rod is provided with has can be varied so as tochange the position of the brushes and compensate for the wear upon thebristles thereof.

the upper'one of the shafts 16 near the end thereof.

1 The chain 21 is operated so as to drive the brushes toward each otherand toward the rolls 11,-and as the plates emerge from between therolls, their surfaces will be engaged by theends of the steel bristles,and

I 4 all scale will be removed from said plates.

As the ends of the steel bristles of the brushes wear off the screw rod17 is manipulated to change the angularity of the members 15, and thusthe brushes can be retained in service until the bristles arecomparatively short. (See Fig. 4.)

An attachment of ourlimproved construction is comparati ely simple, canbeadvantageously used inconnection with all forms of plate rolling millsand is veryeffective in removing scale from the surfaces of the pdpitesor sheets which pass through said It is obvious that various changes inthe size,-form and construction of the various parts of our improvedattachment may be made and substituted for those herein shown anddescribed, without departing from the spirit of our invention, thescopeof which is set forth in the appended claims.

We claim:

1. The combination with'a late rolling mill, of rotar brushes located onthe discharge side 0 therolls of said mill for engaging the plates orsheets discharged from between said rolls, which brushes'are geared toeach other and driving means connected to one of said brushes.

- rolls thereof for engaging the char connected to one o 2.'Thecombination with a plate rolling mill, of; rotary brushes arran ed nearthe discharge side; ot the mill ad acent to the lates disfrom betweensaid re s, which brus es are geared together and are adapted to rotatein a direction opposite to that of the travelof the plate and drivingmeans said brushes.

- The combination with a plate rolling .m111,.of rotary-brushes arran ednear the discharge side of the mill ad acent to the rolls thereof forengaging the plates dis-.

charged from between said rolls, which brushes are adapted to rotate ina direction opposite to'that .ofthe travel of the plate,

driving means connected to one .of said brushes and means for adjustingthe angumill, of rotarybrushes arrange sate for the wear 0 larity ofsaid brushes with respect to the path of travel of the plates throughthe mill so as to compensate for the wear upon. the bristles ofsaidbrushes.

- 4:. The combination with a plate rolling mill, of rotary brushespositioned adjacent the rolls of the mill on the discharge side thereoffor engaging the plates emerging from between the rolls, and meansdirectly connected to one of the brushes for driving said brushes in thedirection opposite to that of 11the travel of the plate from between ther0 s.

5. The combination with a plate rolling mill, of rotary brushespositioned adjacent the rolls of the mill on the discharge side thereoffor engaging the plates emerging from between the rolls, means directlyconnected to one of the brushes for driving said brushes in thedirection opposite to that of the travel of the plate from between therolls, and means for adjusting the angularadapted to remove scale fromthe plate in the direction opposite to the travel of said. plates.

7. The combination with a plate rolling mill, of adjustable rotarybrushes positions .on'the discharge side of the mill adjacent to therplls thereof and adapted to engage the upper and lower faces of theplates as they emerge from between the rolls and means connected to saidbrushes whereby the same are positively and simultaneously rotated.

8. The combination with a plate rolling mill, of a pair .of pivotallymounted bearings arranged on the discharge side of the mill, rotarybrushes 'journaled in said bearings, and means for driving said brushestoward each other and toward the rolls.

9. The combination with a plate rolling mill, of a pair of ivotallymounted bear ings arranged in t e dischar e side of the mill, rotarybrushes journal in said bearings, means for ppsitively andsimultaneously driving said and toward the rolls, and means foradjusting the angularity of the-bearings. g 10. The combination with a(plate rolling charge side of the mill for engaging the plates as theyemerge from between the rolls or the purpose of removing scale from saidon the disrushes toward each other plates, means on the mill forpositively and simultaneously rotat' said brushes and sai brushes tocompenthe bristles thereof.

means for adjusting t e I t at it. The eembinetion with e latte rollingIn imeny whet We hereunto e millll, 0t edljnsteblle totem-y brusheslocated on our sietnures in the Presence of two Wit- 1 the disehnrgeside of the mill, meensen seidi nesses, this Mth deny e Febme 19M.

mill for positively end simullteneeusly driv GEORGE DIEJF NBAGHQ 5 ingseid brushes and which hes ere W t WHY. WALUURF.

edepted tq engage the pletes er sheets es Witnesses:

they emer from between the noble et the HAL C. BmLt M. P. Shre

